Checked the nanual for the test presses and will try that a bit later. So once I know the transistor number what will that indicate? Do I need a new one or do something else.

Also wondering why the drop targets just keep resetting and the ball doesn't go into play. Oddly enough i push all the drop targets and they go down but when they reset only 2 stay up...

Is the apron the cover of the solenoid?

Tks for the help with this - I have a bit of electrical/mechanical knowledge but am very new to pinball machine maintenance. Really keen to learn the workings of the new machine though... :-)

You need to read the manual to see how many times you need to press the white button inside the coin door to get to the solenoid test.
Each solenoid will fire and the number of the transistor will be displayed on the backbox credits area.

Have you pulled off the apron to take a look at the solenoid?